When I first visited in 1989 I remember there being clear ponchos with the three parks logo (castle, spaceship earth & ear full tower) which were used on the plastic bags at the same time. When I went back in the 90s these had changed to yellow mickey ones and similar poach onus ones which was the animated film released that year by Disney in the US

DobbysCloset

The yellow ones would make great merchandise for K-Mart (which carries plenty of licensed Disney these days.) As safety gear for crossing dark, wet streets they would be phenomenal.

partyhare

I still have my yellow poncho and a cool Disney pin with Mickey himself wearing a yellow Mickey Mouse poncho!